// Copyright (c) Appeon. All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. 
// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.

using System.Collections.Generic;
using System.Linq;

namespace SnapObjects.Data
{
    internal class Grouping<TKey, TSource> : List<TSource>, IGrouping<TKey, TSource>
    {
        public Grouping(TKey key, IEnumerable<TSource> elements)
        {
            this.Key = key;

            this.AddRange(elements);
        }

        public TKey Key { get; }

        public override string ToString()
        {
            return this.Key?.ToString();
        }
    }
}
